Disclosed is a management apparatus, which makes it possible to use an information viewing apparatus without considering the residual amount of the battery, provided therein. The apparatus includes: a plurality of slots to support a plurality of information viewing apparatuses, each of which is activated by an electric power fed from a battery provided therein and is to be inserted into each of the slots in a detachable manner; and a controlling section to control the plurality of information viewing apparatuses, respectively inserted into the slots. When a predetermined information viewing apparatus is inserted into one of the plurality of slots, the controlling section moves data stored in the predetermined information viewing apparatus to another information viewing apparatus, which is currently inserted into another one of the plurality of slots, depending on a residual amount of the battery provided in the predetermined information viewing apparatus.